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libavresample
arm
audio_convert_init.c
Go to the documentation of this file.
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdint.h>
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#include "
config.h
"
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#include "
libavutil/attributes.h
"
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#include "
libavutil/cpu.h
"
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#include "
libavutil/arm/cpu.h
"
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#include "
libavutil/samplefmt.h
"
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#include "
libavresample/audio_convert.h
"
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void
ff_conv_flt_to_s16_neon
(int16_t *dst,
const
float
*
src
,
int
len
);
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void
ff_conv_fltp_to_s16_neon
(int16_t *dst,
float
*
const
*
src
,
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int
len
,
int
channels);
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void
ff_conv_fltp_to_s16_2ch_neon
(int16_t *dst,
float
*
const
*
src
,
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int
len
,
int
channels);
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av_cold
void
ff_audio_convert_init_arm
(
AudioConvert
*ac)
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{
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int
cpu_flags =
av_get_cpu_flags
();
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if
(
have_neon
(cpu_flags)) {
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ff_audio_convert_set_func
(ac,
AV_SAMPLE_FMT_S16
,
AV_SAMPLE_FMT_FLT
,
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0, 16, 8,
"NEON"
,
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ff_conv_flt_to_s16_neon
);
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ff_audio_convert_set_func
(ac,
AV_SAMPLE_FMT_S16
,
AV_SAMPLE_FMT_FLTP
,
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0, 16, 8,
"NEON"
,
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ff_conv_fltp_to_s16_neon
);
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ff_audio_convert_set_func
(ac,
AV_SAMPLE_FMT_S16
,
AV_SAMPLE_FMT_FLTP
,
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2, 16, 8,
"NEON"
,
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ff_conv_fltp_to_s16_2ch_neon
);
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}
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}
AV_SAMPLE_FMT_FLTP
float, planar
Definition:
samplefmt.h:70
audio_convert.h
ff_conv_flt_to_s16_neon
void ff_conv_flt_to_s16_neon(int16_t *dst, const float *src, int len)
samplefmt.h
AV_SAMPLE_FMT_FLT
float
Definition:
samplefmt.h:64
AudioConvert
Definition:
audio_convert.c:48
attributes.h
Macro definitions for various function/variable attributes.
config.h
av_cold
#define av_cold
Definition:
attributes.h:82
ff_conv_fltp_to_s16_neon
void ff_conv_fltp_to_s16_neon(int16_t *dst, float *const *src, int len, int channels)
ff_conv_fltp_to_s16_2ch_neon
void ff_conv_fltp_to_s16_2ch_neon(int16_t *dst, float *const *src, int len, int channels)
ff_audio_convert_init_arm
av_cold void ff_audio_convert_init_arm(AudioConvert *ac)
Definition:
audio_convert_init.c:34
have_neon
#define have_neon(flags)
Definition:
cpu.h:27
src
#define src
Definition:
vp9dsp.c:530
cpu.h
cpu.h
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:76
AV_SAMPLE_FMT_S16
signed 16 bits
Definition:
samplefmt.h:62
len
int len
Definition:
vorbis_enc_data.h:452
ff_audio_convert_set_func
void ff_audio_convert_set_func(AudioConvert *ac, enum AVSampleFormat out_fmt, enum AVSampleFormat in_fmt, int channels, int ptr_align, int samples_align, const char *descr, void *conv)
Set conversion function if the parameters match.
Definition:
audio_convert.c:70
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